embag: fix a portability bug

recipes/embag/all/conanfile.py

@@ -3,7 +3,7 @@
 from conan import ConanFile
 from conan.tools.build import check_min_cppstd
 from conan.tools.cmake import CMake, CMakeDeps, CMakeToolchain, cmake_layout
-from conan.tools.files import get, copy, rm
+from conan.tools.files import get, copy, rm, replace_in_file
 
 required_conan_version = ">=1.53.0"
 
@@ -67,7 +67,17 @@ def generate(self):
         deps = CMakeDeps(self)
         deps.generate()
 
+    def _patch_sources(self):
+        # Non-namespaced make_unique is ambiguous in MSVC
+        replace_in_file(
+            self,
+            os.path.join(self.source_folder, "lib", "embag.h"),
+            " make_unique",
+            " std::make_unique",
+        )
+
     def build(self):
+        self._patch_sources()
         cmake = CMake(self)
         cmake.configure()
         cmake.build()